C++ HOMEWORK

#include <fstream> #include <iostream> #include <string> #include <cstdlib> #include "Assembler.h" #include "VirtualMachine.h" using namespace std; int main(int argc, char *argv[]) { Assembler as; VirtualMachine vm; if (argc == 1) { cout << "Must supply an assembly file name.\n"; exit(1); } string assemblyFile = argv[1]; int pos = assemblyFile.find("."); if (pos > assemblyFile.length() || assemblyFile.substr(pos) != ".s") { cout << "No .s suffix.\n"; exit(2); } string name = assemblyFile.substr(0, pos); string objectFile = name + ".o"; fstream assembly, objectCode; assembly.open(assemblyFile.c_str(), ios::in); objectCode.open(objectFile.c_str(), ios::out); if (!assembly.is_open() or !objectCode.is_open()) { cout << "Couldn't open " << assemblyFile << " and/or " << objectFile << endl; exit(3); } if (as.assemble(assembly, objectCode)) { cout << "Assembler Error\n"; assembly.close(); objectCode.close(); exit(4); } assembly.close(); objectCode.close(); objectCode.open(objectFile.c_str(), ios::in); if (!objectCode.is_open()) { cout << "Couldn't open " << objectFile << endl; exit(5); } string inFile = name + ".in"; string outFile = name + ".out"; fstream in, out; in.open(inFile.c_str(), ios::in); out.open(outFile.c_str(), ios::out); if (!in.is_open() or !out.is_open()) { cout << "Couldn't open " << inFile << " and/or " << outFile << endl; exit(6); } vm.run(objectCode, in, out); out << "\nClock = " << vm.get_clock() << endl; objectCode.close(); in.close(); out.close(); return 0; } // main